Difference between a layered collar and a half-collar.
What is a half-collar? A half-collar is a single piece of fabric measuring approximately 1 to 1.1 meters in length and about 15 centimeters in width, which helps prevent collar stains from makeup, sweat, food, and other substances on kimono. The half-collar, surrounding the face, is selected to complement the balance between the kimono and the facial complexion.